基于灰色关联分析的马尾松采脂林土壤肥力评价  

Evaluation on Soil Fertility of Pinus massoniana Resin Stands Based on Grey Relation Analysis

作　　者：颜权 李春宁 覃其云[1,3] 邓小军[1,3] 宋贤冲[1,3] 唐健[1,3] YAN Quan;LI Chunning;QIN Qiyun;DENG Xiaojun;SONG Xianchong;TANG Jian(Guangxi Zhuang Autonomous Region Forestry Research Institute,Nanning 530002,Guangxi,China;Guangxi State-owned Paiyangshan Forest Farm,Ningming 532500,Guangxi,China;Key Laboratory of Central South Fast-growing Timber Cultivation of Forestry Ministry of China Guangxi Research and Development Center for New Forestry Fertilizer Guangxi Key Laboratory of Superior Timber Trees Resource Cultivation,Nanning 530002,Guangxi,China)

机构地区：[1]广西壮族自治区林业科学研究院,广西南宁530002 [2]广西壮族自治区国有派阳山林场,广西宁明532500 [3]国家林业局中南速生材繁育实验室、广西林用新型肥料研发中心、广西优良用材林资源培育重点实验室,广西南宁530002

出　　处：《福建林业科技》2021年第4期62-66,共5页Journal of Fujian Forestry Science and Technology

基　　金：广西林业科技项目(广西马尾松采脂林平衡施肥技术研究,桂林科研[2015]45号)。

摘　　要：2017—2018年,对广西不同区域、不同林龄的马尾松采脂林土壤的主要肥力指标进行测定,并采用灰色关联分析方法对其土壤肥力进行综合评价。结果表明:6个马尾松采脂林样地的根际土和非根际土均呈酸性至强酸性,有机质、全N、碱解N含量处于中等水平,土壤全P、有效P、全K和速效K含量均处于极贫乏水平;土壤中量元素:交换性Ca、交换性Mg含量大部分处于极低水平;土壤微量元素:有效Cu和有效Zn含量处于中等水平,有效Fe含量处于极丰富水平,有效B和有效Mn含量大部分处于极贫乏水平。各马尾松采脂林根际土和非限际土的土壤肥力综合指标值关联度主要分布在0.379~0.647,其中乐里林场15年生的马尾松采脂林土壤综合肥力最高,派阳山林场13年生的马尾松采脂林土壤综合肥力最低。不同区域、不同林龄马尾松采脂林的土壤综合肥力普遍较低。From 2017 to 2018,the main soil fertility indexes of Masson Pine fat mining forest in different regions and forest ages in Guangxi were measured,and the grey correlation analysis method was used to comprehensively evaluate the soil fertility.The results showed that the rhizosphere soil and non rhizosphere soil of six Pinus massoniana resin mining forest sample plots were acidic to strongly acidic,the contents of organic matter,total N and alkali hydrolyzable N were at the medium level,and the contents of total P,available P,total K and available K were at the very poor level;the contents of exchangeable Ca and exchangeable Mg in medium element soil are mostly at a very low level;the contents of available Cu and Zn in soil trace elements are at a medium level,the contents of available Fe are at a very rich level,and most of the contents of available B and Mn are at a very poor level.The correlation degree of comprehensive index values of soil fertility of Rhizosphere Soil and unrestricted soil of each Masson Pine fat picking forest is mainly distributed in 0.379~0.647.Among them,the comprehensive soil fertility of 15-year-old Masson Pine fat picking forest in Leli forest farm is the highest,and the comprehensive soil fertility of 13-year-old Masson Pine fat picking forest in paiyangshan forest farm is the lowest.The soil comprehensive fertility of Pinus massoniana fat gathering forest in different regions and different forest ages is generally low.

关 键 词：马尾松 采脂林 土壤肥力 灰色关联分析 

分 类 号：S714.8[农业科学—林学] S791.248